[Italic Page Numbers Indicate Major References] Abajo Mountains, 314
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UMNP Mountains Manual 2017
Mountain Adventures Manual utahmasternaturalist.org June 2017 UMN/Manual/2017-03pr Welcome to Utah Master Naturalist! Utah Master Naturalist was developed to help you initiate or continue your own personal journey to increase your understanding of, and appreciation for, Utah’s amazing natural world. We will explore and learn aBout the major ecosystems of Utah, the plant and animal communities that depend upon those systems, and our role in shaping our past, in determining our future, and as stewards of the land. Utah Master Naturalist is a certification program developed By Utah State University Extension with the partnership of more than 25 other organizations in Utah. The mission of Utah Master Naturalist is to develop well-informed volunteers and professionals who provide education, outreach, and service promoting stewardship of natural resources within their communities. Our goal, then, is to assist you in assisting others to develop a greater appreciation and respect for Utah’s Beautiful natural world. “When we see the land as a community to which we belong, we may begin to use it with love and respect.” - Aldo Leopold Participating in a Utah Master Naturalist course provides each of us opportunities to learn not only from the instructors and guest speaKers, But also from each other. We each arrive at a Utah Master Naturalist course with our own rich collection of knowledge and experiences, and we have a unique opportunity to share that Knowledge with each other. This helps us learn and grow not just as individuals, but together as a group with the understanding that there is always more to learn, and more to share. -
Late Cenozoic Tectonics of the Central and Southern Coast Ranges of California
OVERVIEW Late Cenozoic tectonics of the central and southern Coast Ranges of California Benjamin M. Page* Department of Geological and Environmental Sciences, Stanford University, Stanford, California 94305-2115 George A. Thompson† Department of Geophysics, Stanford University, Stanford, California 94305-2215 Robert G. Coleman Department of Geological and Environmental Sciences, Stanford University, Stanford, California 94305-2115 ABSTRACT within the Coast Ranges is ascribed in large Taliaferro (e.g., 1943). A prodigious amount of part to the well-established change in plate mo- geologic mapping by T. W. Dibblee, Jr., pre- The central and southern Coast Ranges tions at about 3.5 Ma. sented the areal geology in a form that made gen- of California coincide with the broad Pa- eral interpretations possible. E. H. Bailey, W. P. cific–North American plate boundary. The INTRODUCTION Irwin, D. L. Jones, M. C. Blake, and R. J. ranges formed during the transform regime, McLaughlin of the U.S. Geological Survey and but show little direct mechanical relation to The California Coast Ranges province encom- W. R. Dickinson are among many who have con- strike-slip faulting. After late Miocene defor- passes a system of elongate mountains and inter- tributed enormously to the present understanding mation, two recent generations of range build- vening valleys collectively extending southeast- of the Coast Ranges. Representative references ing occurred: (1) folding and thrusting, begin- ward from the latitude of Cape Mendocino (or by these and many other individuals were cited in ning ca. 3.5 Ma and increasing at 0.4 Ma, and beyond) to the Transverse Ranges. This paper Page (1981). -
CRETACEOUS-TERTIARY BOUNDARY Ijst the ROCKY MOUNTAIN REGION1
BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA V o l..¿5, pp. 325-340 September 15, 1914 PROCEEDINGS OF THE PALEONTOLOGICAL SOCIETY CRETACEOUS-TERTIARY BOUNDARY IjST THE ROCKY MOUNTAIN REGION1 BY P. H . KNOWLTON (Presented before the Paleontological Society December 31, 1913) CONTENTS Page Introduction........................................................................................................... 325 Stratigraphic evidence........................................................................................ 325 Paleobotanical evidence...................................................................................... 331 Diastrophic evidence........................................................................................... 334 The European time scale.................................................................................. 335 Vertebrate evidence............................................................................................ 337 Invertebrate evidence.......................................................................................... 339 Conclusions............................................................................................................ 340 I ntroduction The thesis of this paper is as follows: It is proposed to show that the dinosaur-bearing beds known as “Ceratops beds,” “Lance Creek bieds,” Lance formation, “Hell Creek beds,” “Somber beds,” “Lower Fort Union,”- Laramie of many writers, “Upper Laramie,” Arapahoe, Denver, Dawson, and their equivalents, are above a major -
Preliminary Digital Model of the Arikaree Aquifer in the Sweetwater River Basin, Central Wyoming
PRELIMINARY DIGITAL MODEL OF THE ARIKAREE AQUIFER IN THE SWEETWATER RIVER BASIN, CENTRAL WYOMING U.S. GEOLOGICAL SURVEY Water-Resources Investigations 77-107 Open-File Report ATHFINDER RESERVOIR Prepared in cooperation with the Wyoming State Engineer BIBLIOGRAPHIC DATA 1. Report No. 2. 3. Recipient's Accession No. SHEET 4. Title and Subtitle 5. Report Date PRELIMINARY DIGITAL MODEL OF THE ARIKAREE AQUIFER IN THE September. 1977 SWEETWATER RIVER BASIN, CENTRAL WYOMING 6. 7. Author(s) 8. Performing Organization Kept. William B. Borchert N°*USGS/WRI 77-107 9. Performing Organization Name and Address 10. Project/Task/Work Unit No. U.S. Geological Survey, Water Resources Division 2120 Capitol Avenue 11. Contract/Grant No. P. 0. Box 1125 Cheyenne, Wyoming 82001 12. Sponsoring Organization Name and Address 13. Type of Report & Period U.S. Geological Survey, Water Resources Division Covered 2120 Capitol Avenue Final P. 0. Box 1125 14. Cheyenne, Wyoming 82001 15. Supplementary Notes Prepared in cooperation with the Wyoming State Engineer 16. AbstractsPotentially large supplies of ground water are available in the Sweetwater Rive basin from the Arikaree aquifer, which consists of the upper part of the White River, tb Arikaree, and the Ogallala Formations. A preliminary digital model was developed for tb Arikaree aquifer using a small amount of poorly distributed data, an estimated distri bution of recharge, and a conceptual model of the Arikaree aquifer flow system. Calibra tion of the model was based on reproduction of the potentiometric surface and the base flow of the Sweetwater River in November 1975. Calculated steady-state hydraulic heads were within 50 feet of the observed heads in about 98 percent of the nodes. -
Constraints on the Timescale of Animal Evolutionary History
Palaeontologia Electronica palaeo-electronica.org Constraints on the timescale of animal evolutionary history Michael J. Benton, Philip C.J. Donoghue, Robert J. Asher, Matt Friedman, Thomas J. Near, and Jakob Vinther ABSTRACT Dating the tree of life is a core endeavor in evolutionary biology. Rates of evolution are fundamental to nearly every evolutionary model and process. Rates need dates. There is much debate on the most appropriate and reasonable ways in which to date the tree of life, and recent work has highlighted some confusions and complexities that can be avoided. Whether phylogenetic trees are dated after they have been estab- lished, or as part of the process of tree finding, practitioners need to know which cali- brations to use. We emphasize the importance of identifying crown (not stem) fossils, levels of confidence in their attribution to the crown, current chronostratigraphic preci- sion, the primacy of the host geological formation and asymmetric confidence intervals. Here we present calibrations for 88 key nodes across the phylogeny of animals, rang- ing from the root of Metazoa to the last common ancestor of Homo sapiens. Close attention to detail is constantly required: for example, the classic bird-mammal date (base of crown Amniota) has often been given as 310-315 Ma; the 2014 international time scale indicates a minimum age of 318 Ma. Michael J. Benton. School of Earth Sciences, University of Bristol, Bristol, BS8 1RJ, U.K. [email protected] Philip C.J. Donoghue. School of Earth Sciences, University of Bristol, Bristol, BS8 1RJ, U.K. [email protected] Robert J. -
2004 Bark Beetles
BARK BEETLE CONDITIONS NORTHERN REGION 2004 Ken Gibson USDA Forest Service Northern Region Forest Health Protection Missoula Field Office December 2004 BARK BEETLE CONDITIONS Northern Region 2004 REGIONAL SUMMARY Although late fall has turned out to be atypically dry, most of the Region received above normal amounts of precipitation during calendar year 2004. Most of Montana, and especially the eastern portions, have not completely broken out of the 4- to 5-year drought; however, growing conditions for most bark beetle hosts improved markedly throughout the Region. Despite improved conditions, long-term drought affects are not easily overcome. Too, many bark beetle species are at extremely high levels and will not respond to improved host conditions for a year or so. Those latter two factors combined to result in an increase in infested area by most bark beetle species across the Region. Unfortunately, less-than-optimal weather conditions late in the season prevented aerial survey of all beetle-infested areas. Approximately 85% of the forested portions of the 24 reporting areas were flown. While some areas appeared to be less impacted, for most of the Region, and particularly Montana; both aerial and ground-collected data showed still- increasing bark beetle infestations for most species. Mountain pine beetle-infested areas increased in many locations surveyed; however, in some locations, intensity of beetle-caused mortality is declining due to host depletion. Decreases in infested area recorded on the Lolo National Forest (NF), however, is a reflection of the amount of area flown—not necessarily an indication that the outbreak, overall, is waning. In total, considerably more infested acres were recorded in 2004 than in 2003; despite some heavily infested areas having not been flown. -
VDRARY FEB / Marine Science Laboratory Oregon State University
0) VDRARY FEB / Marine Science Laboratory Oregon State University Vol. 37, No. 1 January 1975 STATE OF OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES The Ore Bin Published Monthly By sr* STATE OF OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES Head Office: 1069 State Office Bldg., Portland, Oregon - 97201 Telephone: [503] - 229-5580 FIELD OFFICES 2033 First Street 521 N. E. "E" Street Baker 97814 Grants Pass 97526 XX X XX X X XXX X XXX X XXX X X Subscription Rate 1 year - $2.00; 3 years - $5.00 Available back issues - $.25 each Second class postage paid at Portland, Oregon 9 9 9 9 9 9 9 9 9 5Z 9 9' 9 9 9 9 9 9 9 '9 0. GOVERNING BOARD R. W. deWeese, Portland, Chairman William E. Miller, Bend H. Lyle Van Gordon, Grants Pass STATE GEOLOGIST R. E. Corcoran GEOLOGISTS IN CHARGE OF FIELD OFFICES Howard C. Brooks, Baker Len Ramp, Grants Pass 5Z 9 5Z 9 9 9' 5Z 5Z 5Z 5Z 5Z 9' 9 5Z x 5Z 5Z 'k 5Z 5Z Permission is granted to reprint information contained herein. Credit given the State of Oregon Department of Geology and Mineral Industries • for compiling this information will be appreciated. State of Oregon The ORE BIN Department of Geology Volume 37,No. 1 and Mineral Industries January 1975 • 069 State Office Bldg. rtland Oregon 97201 OREGON'S MINERAL AND METALLURGICAL INDUSTRY IN 1974 Ralph S. Mason, Deputy State Geologist Oregon Department of Geology and Mineral Industries The value of raw minerals produced in the State during 1974 increased 11.3 percent, eclipsing a gain of nearly 9 percent for the previous year. -
Analysis and Correlation of Growth
ANALYSIS AND CORRELATION OF GROWTH STRATA OF THE CRETACEOUS TO PALEOCENE LOWER DAWSON FORMATION: INSIGHT INTO THE TECTONO-STRATIGRAPHIC EVOLUTION OF THE COLORADO FRONT RANGE by Korey Tae Harvey A thesis submitted to the Faculty and Board of Trustees of the Colorado School of Mines in partial fulfillment of the requirements for the degree of Master of Science (Geology). Golden, Colorado Date __________________________ Signed: ________________________ Korey Harvey Signed: ________________________ Dr. Jennifer Aschoff Thesis Advisor Golden, Colorado Date ___________________________ Signed: _________________________ Dr. Paul Santi Professor and Head Department of Geology and Geological Engineering ii ABSTRACT Despite numerous studies of Laramide-style (i.e., basement-cored) structures, their 4-dimensional structural evolution and relationship to adjacent sedimentary basins are not well understood. Analysis and correlation of growth strata along the eastern Colorado Front Range (CFR) help decipher the along-strike linkage of thrust structures and their affect on sediment dispersal. Growth strata, and the syntectonic unconformities within them, record the relative roles of uplift and deposition through time; when mapped along-strike, they provide insight into the location and geometry of structures through time. This paper presents an integrated structural- stratigraphic analysis and correlation of three growth-strata assemblages within the fluvial and fluvial megafan deposits of the lowermost Cretaceous to Paleocene Dawson Formation on the eastern CFR between Colorado Springs, CO and Sedalia, CO. Structural attitudes from 12 stratigraphic profiles at the three locales record dip discordances that highlight syntectonic unconformities within the growth strata packages. Eight traditional-type syntectonic unconformities were correlated along-strike of the eastern CFR distinguish six phases of uplift in the central portion of the CFR. -
Reconnaissance for Uranium-Bearing Lignite in the Ekalaka Lignite Field, Carter County, Montana
~~) ~<~~~~~~ -J(p7r- ~ee~~ ~I Jo/09 fir} . Lfo..z, 0 Reconnaissance for Uranium-Bearing Lignite in the Ekalaka Lignite Field, Carter County, Montana By J. R. Gill Trace Elements ln'Vestigations Report 452 UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY OFFICIAL USE ONLY Geology .and Mineralogy This document consists of 2? pages ~ Series A · UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY RECONNAISSANCE FOR URANIUM-BEARING LIGNITE IN THE EKALAKA LIGNITE FIELD CARTER COUNTY, MONT ANA* By James Re G.ill July 1954 Trace Elements Inveatigations Report 45Z This preliminary report is distributed without editorial and technical review for conformity with offic1al standards and nomenclature. It is not for public inspection or quotation. When separated from Part II, handle Part I as 'UNCL~: SSIFIED. * This report concerns work done on behalf of the Division of Raw Materials of the U. S. Atomic Energy Commission. OFFICIAL USE ONLY ~ USGS - TEI-454 GEOLOGY AND MINERALOGY Distribution (Series A) No. of copies Argonne Nati onal Laboratory . 1 ·Atomic Energy Commission, Vf ashington 1 Divi sion of Raw Materials~ Albuquerque 1 Divi sion of Raw Materials, Butte I Division of Raw Materials, Denver 1 Division of Raw Materials~ Douglas 1 Division of Raw Mate rials, Hot Springs • 1 Division of Raw Materials, Ishpeming 1 Divi sion of Raw Materials 1 Phoenix 1 Division of Raw Materials,·: Richfield 1 Di v ision of Raw Materi als, Salt Lake City • 1 Division of Raw Materials, Washington . 3 Explorati on Divis ion, Grand Junction Ope'rations Office • 1 Grand Junction Operations Office 1 Technic al Information Service, Oak Ridge . -
U.S. Geological Survey Radiometric Ages—Compilation "C" Part Four: Idaho, Oregon, and Washington R.H
U.S. Geological Survey radiometric ages—compilation "C" Part four: Idaho, Oregon, and Washington R.H. Marvin, H.H. Mehnert, C.W. Naeser, and R.E. Zartman Isochron/West, Bulletin of Isotopic Geochronology, v. 53, pp. 3-13 Downloaded from: https://geoinfo.nmt.edu/publications/periodicals/isochronwest/home.cfml?Issue=53 Isochron/West was published at irregular intervals from 1971 to 1996. The journal was patterned after the journal Radiocarbon and covered isotopic age-dating (except carbon-14) on rocks and minerals from the Western Hemisphere. Initially, the geographic scope of papers was restricted to the western half of the United States, but was later expanded. The journal was sponsored and staffed by the New Mexico Bureau of Mines (now Geology) & Mineral Resources and the Nevada Bureau of Mines & Geology. All back-issue papers are available for free: https://geoinfo.nmt.edu/publications/periodicals/isochronwest This page is intentionally left blank to maintain order of facing pages. U.S. GEOLOGICAL SURVEY RADIOMETRIC AGES-COMPILATION "C" Part four: Idaho, Oregon, and Washington RICHARD F. MARVIN HARALD H. MEHNERT U.S. Geological Survey, Federal Center, Denver, CO 80225 CHARLES W. NAESER ROBERT E. ZARTMAN This is part four of the third compilation of a planned series of age determinations by the U.S. Geological Survey appearing in Isochron/West. It contains both unpublished and published dates. However,the latter ages lacked either a specific sample location, petrologic information, or ana lytical data in their published form. Such specifics are often needed for evaluation and utilization of an isotopic age. That, we believe, is the value of this compilation—it sup plies such information for most of the listed samples. -
Pamphlet to Accompany
Geologic and Geophysical Maps of the Eastern Three- Fourths of the Cambria 30´ x 60´ Quadrangle, Central California Coast Ranges Pamphlet to accompany Scientific Investigations Map 3287 2014 U.S. Department of the Interior U.S. Geological Survey This page is intentionally left blank Contents Contents ........................................................................................................................................................................... ii Introduction ..................................................................................................................................................................... 1 Interactive PDF ............................................................................................................................................................ 2 Stratigraphy ..................................................................................................................................................................... 5 Basement Complexes ................................................................................................................................................. 5 Salinian Complex ..................................................................................................................................................... 5 Great Valley Complex ............................................................................................................................................ 10 Franciscan Complex ............................................................................................................................................. -
Geologic Map of IDAHO
Geologic Map of IDAHO 2012 COMPILED BY Reed S. Lewis, Paul K. Link, Loudon R. Stanford, and Sean P. Long Geologic Map of Idaho Compiled by Reed S. Lewis, Paul K. Link, Loudon R. Stanford, and Sean P. Long Idaho Geological Survey Geologic Map 9 Third Floor, Morrill Hall 2012 University of Idaho Front cover photo: Oblique aerial Moscow, Idaho 83843-3014 view of Sand Butte, a maar crater, northeast of Richfield, Lincoln County. Photograph Ronald Greeley. Geologic Map Idaho Compiled by Reed S. Lewis, Paul K. Link, Loudon R. Stanford, and Sean P. Long 2012 INTRODUCTION The Geologic Map of Idaho brings together the ex- Map units from the various sources were condensed tensive mapping and associated research released since to 74 units statewide, and major faults were identified. the previous statewide compilation by Bond (1978). The Compilation was at 1:500,000 scale. R.S. Lewis com- geology is compiled from more than ninety map sources piled the northern and western parts of the state. P.K. (Figure 1). Mapping from the 1980s includes work from Link initially compiled the eastern and southeastern the U.S. Geological Survey Conterminous U.S. Mineral parts and was later assisted by S.P. Long. County geo- Appraisal Program (Worl and others, 1991; Fisher and logic maps were derived from this compilation for the others, 1992). Mapping from the 1990s includes work Digital Atlas of Idaho (Link and Lewis, 2002). Follow- by the U.S. Geological Survey during mineral assess- ments of the Payette and Salmon National forests (Ev- ing the county map project, the statewide compilation ans and Green, 2003; Lund, 2004).